I mean, how come for blu-ray , the data transfer rate for movie applications is more than that required for HDDVD ...

PS : just so this topic doesnt get locked .... will this have any influence on the PS3 ??? :wink:

arfi-gorgona-O

10-23-2005, 14:47

Maybe cause the blu-ray use less compression i guess,i see many people saying HD movies and they think that HD is only the resolution...but they totaly forget about the compression.Maybe im wrong if i am someone correct me.

Steroyd

10-23-2005, 16:33

compression is reliant on CPU work, not data transfer speed.

I havn't a clue, i mean i'm reading 54Mbps everywhere, but i think that's standard forMovie and game applications.

So a 1X drive on a PS3 would probably be at 54Mbps.

Schmeh

10-23-2005, 17:19

compression is reliant on CPU work, not data transfer speed.

I havn't a clue, i mean i'm reading 54Mbps everywhere, but i think that's standard forMovie and game applications.

So a 1X drive on a PS3 would probably be at 54Mbps.

No, a 1x Blu-ray dive is 36Mbps not matter what it is used for. The 54Mbps refers to the transfer rate at which Blu-ray movies will require. So to play a Blu-ray movie you must have a 2x drive since 1x would be to slow.

http://www.blu-ray.com/faq/#3.2

As for why the movies require 54mbps, I don't know, that is an interesting question.

Nasty Gnasher

10-23-2005, 18:02

compression is reliant on CPU work, not data transfer speed.

I havn't a clue, i mean i'm reading 54Mbps everywhere, but i think that's standard forMovie and game applications.

So a 1X drive on a PS3 would probably be at 54Mbps.

no no , 54Mbps would make it 1.5x ... although i do hope its nothing less than 2x.

knowitman

10-23-2005, 22:03

If the movies use a different compression scheme the movie size could be larger. That means more data would have to be read at a time. That means higher read rates.

I know that Blu-Ray and HDDVD all support the same video codecs so does that mean Blu-Ray movies will be higher quality?

arfi-gorgona-O

10-23-2005, 22:48

knowitman

Exactly,thats what i said earlier,the compression inside blu-ray is smaller,when people say HD they mean the resolution but not the compression...with a 200gb blu-ray you can play HD (assuming they use it for 1 movie only)but you expect to have a better picture quality,than a blu-ray with 25gb.

oldegmr

10-24-2005, 00:56

From what I understand, there really isn't such a thing as a 1x speed Blu-ray drive since the specs for movies require a higher speed for frame-buffering and error correction, ect. I don't think it would be going out on a limb too bad to believe the PS3 would have at least a 2x drive for this reason.

The Chocobo Kid

10-24-2005, 01:36

blue-ray is built to be way way better then HDDVD so no worry no matter how you look at it.

exodus7

10-24-2005, 03:04

blue-ray is built to be way way better then HDDVD so no worry no matter how you look at it.

The same way that HD DVD is built to be cheaper then Blu Ray.

arfi-gorgona-O

10-24-2005, 03:14

But if they need 1,5 to play HD a movie,the next step is 3x...at least i think so.

Omar

10-24-2005, 03:25

blue-ray is built to be way way better then HDDVD so no worry no matter how you look at it.

The same way that HD DVD is built to be cheaper then Blu Ray.

Cheaper or not, what really matters is which format gets more support, and so far it's Blu-Ray so it doesn't matter if it's a little cheaper than Blu-Ray. You will be buying Blu-Ray discs eventually.